SACM21 — Punctuation and spacing errors

In section 1.4 there is a missing "," after the word "Basically" at the beginning of the second sentence in the second paragraph. In section 9.2 "top level" should be hyphenated in the second sentence of the first paragraph. In the last sentence of section 11.1 the "." at the end is in the wrong place.

Minor edits to address mistakes

Add comma after Basically in 1.4, in 9.2 hyphenate top-level, and correctly place the period in 11.1